• 🤕 patients admitted to hospital

• 🚕 traffic in the city

• 🤳 social media posts

• ⛈ weather patterns

• 🐒 animal movement

• 🍒 agricultural output

• 💻 pixels on images

• 🤕 patients admitted to hospital 🌐

• 🚕 traffic in the city 🌐

• 🤳 social media posts 🌐

• ⛈ weather patterns 🌐

• 🐒 animal movement 🌐

• 🍒 agricultural output 🌐

• 💻 pixels on images 🌐

listings %>% select(-host_id) %>% slice(1:5)

## # A tibble: 5 x 8
##      id name     host_name neighbourhood latitude longitude room_type price
##   <dbl> <chr>    <chr>     <chr>            <dbl>     <dbl> <chr>     <dbl>
## 1  9835 Beautif~ Manju     Manningham       -37.8      145. Private ~    60
## 2 10803 Room in~ Lindsay   Moreland         -37.8      145. Private ~    35
## 3 12936 St Kild~ Frank & ~ Port Phillip     -37.9      145. Entire h~   159
## 4 15246 Large p~ Eleni     Darebin          -37.8      145. Private ~    50
## 5 16760 Melbour~ Colin     Port Phillip     -37.9      145. Private ~    69

ggplot(listings, aes(x = longitude, y = latitude)) + geom_point()

SA2_2016_MELB %>% select(-starts_with("SA4")) %>% slice(1:5)

## Simple feature collection with 5 features and 2 fields
## geometry type:  MULTIPOLYGON
## dimension:      XY
## bbox:           xmin: 144.9267 ymin: -37.78021 xmax: 144.9869 ymax: -37.73251
## epsg (SRID):    4283
## proj4string:    +proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +no_defs
##   SA2_MAIN16        SA2_NAME16                       geometry
## 1  206011105         Brunswick MULTIPOLYGON (((144.9497 -3...
## 2  206011106    Brunswick East MULTIPOLYGON (((144.9734 -3...
## 3  206011107    Brunswick West MULTIPOLYGON (((144.9341 -3...
## 4  206011108            Coburg MULTIPOLYGON (((144.9485 -3...
## 5  206011109 Pascoe Vale South MULTIPOLYGON (((144.9326 -3...

ggplot(SA2_2016_MELB) + geom_sf()

Image Source: NEON, via Data Carpentry

Image Source: NEON, via Data Carpentry

st_crs(SA2_2016_MELB)

## Coordinate Reference System:
##   EPSG: 4283 
##   proj4string: "+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +no_defs"

• … allowing "every location on Earth to be specified by a set of numbers, letters or symbols"

• … but "To specify a location on a plane requires a map projection." Wikipedia

Image Source: van Wijk (2008)

• Read and manipulate data
• Inspect and summarize data
• Join data from two sources
• Work with vector polygon data
• Create an interactive map
• Search for help

https://github.com/RPanczak/ReduSpatial

In RStudio: File >> Open Project... choose ReduSpatial.Rproj